RISC-V: Don't fail in riscv_of_parent_hartid() for disabled HARTs
authorAnup Patel <apatel@ventanamicro.com>
Fri, 27 Oct 2023 15:42:53 +0000 (21:12 +0530)
committerPalmer Dabbelt <palmer@rivosinc.com>
Thu, 9 Nov 2023 02:57:14 +0000 (18:57 -0800)
commitc4676f8dc1e12e68d6511f9ed89707fdad4c962c
tree3f2899688d4234d760604aed770ebbf300967e8b
parent0bb80ecc33a8fb5a682236443c1e740d5c917d1d
RISC-V: Don't fail in riscv_of_parent_hartid() for disabled HARTs

The riscv_of_processor_hartid() used by riscv_of_parent_hartid() fails
for HARTs disabled in the DT. This results in the following warning
thrown by the RISC-V INTC driver for the E-core on SiFive boards:

[    0.000000] riscv-intc: unable to find hart id for /cpus/cpu@0/interrupt-controller

The riscv_of_parent_hartid() is only expected to read the hartid
from the DT so we directly call of_get_cpu_hwid() instead of calling
riscv_of_processor_hartid().

Fixes: ad635e723e17 ("riscv: cpu: Add 64bit hartid support on RV64")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20231027154254.355853-2-apatel@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
arch/riscv/kernel/cpu.c